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Version 2.0

This is a historic version of this account.  Current version

 - Calliope Hummingbird
 - Calliope Hummingbird

Calliope Hummingbird Selasphorus calliope

William A. Calder and Lorene L. Calder
Version: 2.0 — Published January 1, 1994

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Recommended Citation

Calder, W. A. and L. L. Calder (1994). Calliope Hummingbird (Selasphorus calliope), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bna.135